Nathan De Lee - Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY 41099, USA

Nathan De Lee
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Name
Nathan De Lee
Affiliation
Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY 41099, USA
City
Highland Heights
Country
United States

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Solar and Stellar Astrophysics (21)
 
Earth and Planetary Astrophysics (10)
 
Instrumentation and Methods for Astrophysics (7)
 
Astrophysics of Galaxies (6)
 
Astrophysics (3)
 
Cosmology and Nongalactic Astrophysics (3)
 
Computer Science - Software Engineering (1)

Publications Authored By Nathan De Lee

2017Feb
Authors: Michael R. Blanton, Matthew A. Bershady, Bela Abolfathi, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Javier Alonso-García, Friedrich Anders, Scott F. Anderson, Brett Andrews, Erik Aquino-Ortíz, Alfonso Aragón-Salamanca, Maria Argudo-Fernández, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Kathleen A. Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Dominic Bates, Falk Baumgarten, Julian Bautista, Rachael Beaton, Timothy C. Beers, Francesco Belfiore, Chad F. Bender, Andreas A. Berlind, Mariangela Bernardi, Florian Beutler, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael Blomqvist, Adam S. Bolton, Médéric Boquien, Jura Borissova, Remco van den Bosch, Jo Bovy, William N. Brandt, Jonathan Brinkmann, Joel R. Brownstein, Kevin Bundy, Adam J. Burgasser, Etienne Burtin, Nicolás G. Busca, Michele Cappellari, Maria Leticia Delgado Carigi, Joleen K. Carlberg, Aurelio Carnero Rosell, Ricardo Carrera, Brian Cherinka, Edmond Cheung, Yilen Gómez Maqueo Chew, Cristina Chiappini, Peter Doohyun Choi, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Rafael Fernando Cirolini, Nicolas Clerc, Roger E. Cohen, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D. Crane, Rupert A. C. Croft, Irene Cruz-Gonzalez, Daniel Garrido Cuadra, Katia Cunha, Guillermo J. Damke, Jeremy Darling, Roger Davies, Kyle Dawson, Axel de la Macorra, Nathan De Lee, Timothée Delubac, Francesco Di Mille, Aleks Diamond-Stanic, Mariana Cano-Díaz, John Donor, Juan José Downes, Niv Drory, Hélion du Mas des Bourboux, Christopher J. Duckworth, Tom Dwelly, Jamie Dyer, Garrett Ebelke, Daniel J. Eisenstein, Eric Emsellem, Mike Eracleous, Stephanie Escoffier, Michael L. Evans, Xiaohui Fan, Emma Fernández-Alvar, J. G. Fernandez-Trincado, Diane K. Feuillet, Alexis Finoguenov, Scott W. Fleming, Andreu Font-Ribera, Alexander Fredrickson, Gordon Freischlad, Peter M. Frinchaboy, Lluís Galbany, R. Garcia-Dias, D. A. García-Hernández, Patrick Gaulme, Doug Geisler, Joseph D. Gelfand, Héctor Gil-Marín, Bruce A. Gillespie, Daniel Goddard, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul J. Green, Catherine J. Grier, James E. Gunn, Hong Guo, Julien Guy, Alex Hagen, ChangHoon Hahn, Matthew Hall, Paul Harding, Sten Hasselquist, Suzanne L. Hawley, Fred Hearty, Jonay I. Gonzalez Hernández, Shirley Ho, David W. Hogg, Kelly Holley-Bockelmann, Jon A. Holtzman, Parker H. Holzer, Joseph Huehnerhoff, Timothy A. Hutchinson, Ho Seong Hwang, Héctor J. Ibarra-Medel, Gabriele da Silva Ilha, Inese I. Ivans, KeShawn Ivory, Kelly Jackson, Trey W. Jensen, Jennifer A. Johnson, Amy Jones, Henrik Jönsson, Eric Jullo, Vikrant Kamble, Karen Kinemuchi, David Kirkby, Francisco-Shu Kitaura, Mark Klaene, Gillian R. Knapp, Jean-Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, David R. Law, Daniel Lazarz, Jean-Marc Le Goff, Fu-Heng Liang, Cheng Li, Hongyu LI, Marcos Lima, Lihwai Lin, Yen-Ting Lin, Sara Bertran de Lis, Chao Liu, Miguel Angel C. de Icaza Lizaola, Dan Long, Sara Lucatello, Britt Lundgren, Nicholas K. MacDonald, Alice Deconto Machado, Chelsea L. MacLeod, Suvrath Mahadevan, Marcio Antonio Geimba Maia, Roberto Maiolino, Steven R. Majewski, Elena Malanushenko, Viktor Malanushenko, Arturo Manchado, Shude Mao, Claudia Maraston, Rui Marques-Chaves, Karen L. Masters, Cameron K. McBride, Richard M. McDermid, Brianne McGrath, Ian D. McGreer, Nicolás Medina Peña, Matthew Melendez, Andrea Merloni, Michael R. Merrifield, Szabolcs Meszaros, Andres Meza, Ivan Minchev, Dante Minniti, Takamitsu Miyaji, Surhud More, John Mulchaey, Francisco Müller-Sánchez, Demitri Muna, Ricardo R. Munoz, Adam D. Myers, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Alenka Negrete, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, Pierros Ntelis, Julia E. O'Connell, Ryan J. Oelkers, Audrey Oravetz, Daniel Oravetz, Zach Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro Alonso Palicio, Kaike Pan, Taniya Parikh, Isabelle Pâris, Changbom Park, Alim Y. Patten, Sebastien Peirani, Marcos Pellejero-Ibanez, Samantha Penny, Will J. Percival, Ismael Perez-Fournon, Patrick Petitjean, Matthew M. Pieri, Marc Pinsonneault, Alice Pisani, Radosław Poleski, Francisco Prada, Abhishek Prakash, Anna Bárbara de Andrade Queiroz, M. Jordan Raddick, Anand Raichoor, Sandro Barboza Rembold, Hannah Richstein, Rogemar A. Riffel, Rogério Riffel, Hans-Walter Rix, Annie C. Robin, Constance M. Rockosi, Sergio Rodríguez-Torres, A. Roman-Lopes, Carlos Román-Zúñiga, Margarita Rosado, Ashley J. Ross, Graziano Rossi, John Ruan, Rossana Ruggeri, Eli S. Rykoff, Salvador Salazar-Albornoz, Mara Salvato, Ariel G. Sánchez, David Sánchez Aguado, José R. Sánchez-Gallego, Felipe A. Santana, Basílio Xavier Santiago, Conor Sayres, Ricardo P. Schiavon, Jaderson da Silva Schimoia, Edward F. Schlafly, David J. Schlegel, Donald P. Schneider, Mathias Schultheis, William J. Schuster, Axel Schwope, Hee-Jong Seo, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Michael Shull, Joshua D. Simon, Danielle Skinner, M. F. Skrutskie, Anže Slosar, Verne V. Smith, Jennifer S. Sobeck, Flavia Sobreira, Garrett Somers, Diogo Souto, David V. Stark, Keivan Stassun, Fritz Stauffer, Matthias Steinmetz, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S. Stringfellow, Genaro Suárez, Jing Sun, Nao Suzuki, Laszlo Szigeti, Manuchehr Taghizadeh-Popp, Baitian Tang, Charling Tao, Jamie Tayar, Mita Tembe, Johanna Teske, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Patricia Tissera, Rita Tojeiro, Hector Hernandez Toledo, Sylvain de la Torre, Christy Tremonti, Nicholas W. Troup, Octavio Valenzuela, Inma Martinez Valpuesta, Jaime Vargas-González, Mariana Vargas-Magaña, Jose Alberto Vazquez, Sandro Villanova, M. Vivek, Nicole Vogt, David Wake, Rene Walterbos, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, David H. Weinberg, Kyle B. Westfall, David G. Whelan, Vivienne Wild, John Wilson, W. M. Wood-Vasey, Dominika Wylezalek, Ting Xiao, Renbin Yan, Meng Yang, Jason E. Ybarra, Christophe Yèche, Nadia Zakamska, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Gong-Bo Zhao, Zheng Zheng, Zhi-Min Zhou, Guangtun B. Zhu, Manuela Zoccali, Hu Zou

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratio in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially-resolved spectroscopy for thousands of nearby galaxies (median redshift of z = 0. Read More

Planet searches using the radial velocity technique show a paucity of companions to solar-type stars within ~5 AU in the mass range of ~10 - 80 M$_{\text{Jup}}$. This deficit, known as the brown dwarf desert, currently has no conclusive explanation. New substellar companions in this region help asses the reality of the desert and provide insight to the formation and evolution of these objects. Read More

2016Aug
Authors: SDSS Collaboration, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott Anderson, Brett H. Andrews, Alfonso Aragon-Salamanca, Maria Argudo-Fernandez, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Beatriz Barbuy, Kat Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Sarbani Basu, Dominic Bates, Giuseppina Battaglia, Falk Baumgarten, Julien Baur, Julian Bautista, Timothy C. Beers, Francesco Belfiore, Matthew Bershady, Sara Bertran de Lis, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael Blanton, Michael Blomqvist, Adam S. Bolton, J. Borissova, Jo Bovy, William Nielsen Brandt, Jonathan Brinkmann, Joel R. Brownstein, Kevin Bundy, Etienne Burtin, Nicolas G. Busca, Hugo Orlando Camacho Chavez, M. Cano Diaz, Michele Cappellari, Ricardo Carrera, Yanping Chen, Brian Cherinka, Edmond Cheung, Cristina Chiappini, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Rafael Fernando Cirolini, Nicolas Clerc, Roger E. Cohen, Julia M. Comerford, Johan Comparat, Marie-Claude Cousinou, Kevin Covey, Jeffrey D. Crane, Rupert Croft, Katia Cunha, Luiz da Costa, Gabriele da Silva Ilha, Jeremy Darling, James W. Davidson Jr., Kyle Dawson, Nathan De Lee, Axel de la Macorra, Sylvain de la Torre, Alice Deconto Machado, Timothee Delubac, Aleksandar M. Diamond-Stanic, John Donor, Juan Jose Downes, Niv Drory, Helion du Mas des Bourboux, Cheng Du, Tom Dwelly, Garrett Ebelke, Arthur Eigenbrot, Daniel J. Eisenstein, Yvonne P. Elsworth, Eric Emsellem, Michael Eracleous, Stephanie Escoffier, Michael L. Evans, Jesus Falcon-Barroso, Xiaohui Fan, Ginevra Favole, Emma Fernandez-Alvar, J. G. Fernandez-Trincado, Diane Feuillet, Scott W. Fleming, Andreu Font-Ribera, Gordon Freischlad, Peter Frinchaboy, Hai Fu, Yang Gao, D. A. Garcia-Hernandez, Ana E. Garcia Perez, Rafael A. Garcia, R. Garcia-Dias, Patrick Gaulme, Junqiang Ge, Douglas Geisler, Hector Gil Marin, Bruce Gillespie, Leo Girardi, Daniel Goddard, Yilen Gomez Maqueo Chew, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul Green, Catherine J. Grier, Thomas Grier, Hong Guo, Julien Guy, Alex Hagen, Matt Hall, Paul Harding, R. E. Harley, Sten Hasselquist, Suzanne Hawley, Christian R. Hayes, Fred Hearty, Saskia Hekker, Hector Hernandez Toledo, Shirley Ho, David W. Hogg, Kelly Holley-Bockelmann, Jon A. Holtzman, Parker H. Holzer, Jian Hu, Daniel Huber, Timothy Alan Hutchinson, Ho Seong Hwang, Hector J. Ibarra-Medel, Inese I. Ivans, KeShawn Ivory, Kurt Jaehnig, Trey W. Jensen, Jennifer A. Johnson, Amy Jones, Eric Jullo, T. Kallinger, Karen Kinemuchi, David Kirkby, Mark Klaene, Jean-Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, Pierre Laurent, David R. Law, Jean-Marc Le Goff, Alexie Leauthaud, Cheng Li, Ran Li, Chen Li, Niu Li, Fu-Heng Liang, Yu Liang, Marcos Lima, Lihwai Lin, Lin Lin, Yen-Ting Lin, Dan Long, Sara Lucatello, Nicholas MacDonald, Chelsea L. MacLeod, J. Ted Mackereth, Suvrath Mahadevan, Marcio Antonio-Geimba Maia, Roberto Maiolino, Steven R. Majewski, Olena Malanushenko, Nicolas Dullius Mallmann, Arturo Manchado, Claudia Maraston, Rui Marques-Chaves, Inma Martinez Valpuesta, Karen L. Masters, Savita Mathur, Ian D. McGreer, Andrea Merloni, Michael R. Merrifield, Szabolcs Meszaros, Andres Meza, Andrea Miglio, Ivan Minchev, Karan Molaverdikhani, Antonio D. Montero-Dorta, Benoit Mosser, Demitri Muna, Adam Myers, Preethi Nair, Kirpal Nandra, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, Julia O'Connell, Audrey Oravetz, Nelson Padilla, Nathalie Palanque-Delabrouille, Kaike Pan, John Parejko, Isabelle Paris, John A. Peacock, Sebastien Peirani, Marcos Pellejero-Ibanez, Samantha Penny, Will J. Percival, Jeffrey W. Percival, Ismael Perez-Fournon, Patrick Petitjean, Matthew Pieri, Marc H. Pinsonneault, Alice Pisani, Francisco Prada, Abhishek Prakash, Natalie Price-Jones, M. Jordan Raddick, Mubdi Rahman, Anand Raichoor, Sandro Barboza Rembold, A. M. Reyna, James Rich, Hannah Richstein, Jethro Ridl, Rogerio Riffel, Rogemar A. Riffel, Hans-Walter Rix, Annie C. Robin, Constance M. Rockosi, Sergio Rodriguez-Torres, Thaise S. Rodrigues, Natalie Roe, A. Roman Lopes, Carlos Roman-Zuniga, Ashley J. Ross, Graziano Rossi, John Ruan, Rossana Ruggeri, Jessie C. Runnoe, Salvador Salazar-Albornoz, Mara Salvato, Ariel G. Sanchez, Sebastian F. Sanchez, Jose R. Sanchez-Gallego, Basilio Xavier Santiago, Ricardo Schiavon, Jaderson S. Schimoia, Eddie Schlafly, David J. Schlegel, Donald P. Schneider, Ralph Schoenrich, Mathias Schultheis, Axel Schwope, Hee-Jong Seo, Aldo Serenelli, Branimir Sesar, Zhengyi Shao, Matthew Shetrone, Michael Shull, Victor Silva Aguirre, M. F. Skrutskie, Anže Slosar, Michael Smith, Verne V. Smith, Jennifer Sobeck, Garrett Somers, Diogo Souto, David V. Stark, Keivan G. Stassun, Matthias Steinmetz, Dennis Stello, Thaisa Storchi Bergmann, Michael A. Strauss, Alina Streblyanska, Guy S. Stringfellow, Genaro Suarez, Jing Sun, Manuchehr Taghizadeh-Popp, Baitian Tang, Charling Tao, Jamie Tayar, Mita Tembe, Daniel Thomas, Jeremy Tinker, Rita Tojeiro, Christy Tremonti, Nicholas Troup, Jonathan R. Trump, Eduardo Unda-Sanzana, O. Valenzuela, Remco van den Bosch, Mariana Vargas-Magana, Jose Alberto Vazquez, Sandro Villanova, M. Vivek, Nicole Vogt, David Wake, Rene Walterbos, Yuting Wang, Enci Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, David H. Weinberg, Kyle B. Westfall, David G. Whelan, Eric Wilcots, Vivienne Wild, Rob A. Williams, John Wilson, W. M. Wood-Vasey, Dominika Wylezalek, Ting Xiao, Renbin Yan, Meng Yang, Jason E. Ybarra, Christophe Yeche, Fang-Ting Yuan, Nadia Zakamska, Olga Zamora, Gail Zasowski, Kai Zhang, Cheng Zhao, Gong-Bo Zhao, Zheng Zheng, Zheng Zheng, Zhi-Min Zhou, Guangtun Zhu, Joel C. Zinn, Hu Zou

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in July 2014. It pursues three core programs: APOGEE-2, MaNGA, and eBOSS. In addition, eBOSS contains two major subprograms: TDSS and SPIDERS. Read More

In its three years of operation, the Sloan Digital Sky Survey (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE-1) observed $>$14,000 stars with enough epochs over a sufficient temporal baseline for the fitting of Keplerian orbits. We present the custom orbit-fitting pipeline used to create this catalog, which includes novel quality metrics that account for the phase and velocity coverage of a fitted Keplerian orbit. With a typical RV precision of $\sim100-200$ m s$^{-1}$, APOGEE can probe systems with small separation companions down to a few Jupiter masses. Read More

We present the results of our Johnson B and V observations of three RR Lyrae candidate stars that we identified as likely variable stars using SDSS data. The stars were selected based upon a single epoch of photometry and spectroscopy. The stars were observed at McDonald Observatory to obtain full light curves. Read More

We present the target selection process for the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the Sloan Digital Sky Survey (SDSS) III. MARVELS is a medium-resolution ($R \sim 11000$) multi-fiber spectrograph capable of obtaining radial velocities for 60 objects at a time in order to find brown dwarfs and giant planets. The survey was configured to target dwarf stars with effective temperatures approximately between $4500$ and $6250 \, \mbox{K}$. Read More

2015Jan
Authors: Shadab Alam1, Franco D. Albareti2, Carlos Allende Prieto3, F. Anders4, Scott F. Anderson5, Brett H. Andrews6, Eric Armengaud7, Éric Aubourg8, Stephen Bailey9, Julian E. Bautista10, Rachael L. Beaton11, Timothy C. Beers12, Chad F. Bender13, Andreas A. Berlind14, Florian Beutler15, Vaishali Bhardwaj16, Jonathan C. Bird17, Dmitry Bizyaev18, Cullen H. Blake19, Michael R. Blanton20, Michael Blomqvist21, John J. Bochanski22, Adam S. Bolton23, Jo Bovy24, A. Shelden Bradley25, W. N. Brandt26, D. E. Brauer27, J. Brinkmann28, Peter J. Brown29, Joel R. Brownstein30, Angela Burden31, Etienne Burtin32, Nicolás G. Busca33, Zheng Cai34, Diego Capozzi35, Aurelio Carnero Rosell36, Ricardo Carrera37, Yen-Chi Chen38, Cristina Chiappini39, S. Drew Chojnowski40, Chia-Hsun Chuang41, Nicolas Clerc42, Johan Comparat43, Kevin Covey44, Rupert A. C. Croft45, Antonio J. Cuesta46, Katia Cunha47, Luiz N. da Costa48, Nicola Da Rio49, James R. A. Davenport50, Kyle S. Dawson51, Nathan De Lee52, Timothée Delubac53, Rohit Deshpande54, Letícia Dutra-Ferreira55, Tom Dwelly56, Anne Ealet57, Garrett L. Ebelke58, Edward M. Edmondson59, Daniel J. Eisenstein60, Stephanie Escoffier61, Massimiliano Esposito62, Xiaohui Fan63, Emma Fernández-Alvar64, Diane Feuillet65, Nurten Filiz Ak66, Hayley Finley67, Alexis Finoguenov68, Kevin Flaherty69, Scott W. Fleming70, Andreu Font-Ribera71, Jonathan Foster72, Peter M. Frinchaboy73, J. G. Galbraith-Frew74, D. A. García-Hernández75, Ana E. García Pérez76, Patrick Gaulme77, Jian Ge78, R. Génova-Santos79, Luan Ghezzi80, Bruce A. Gillespie81, Léo Girardi82, Daniel Goddard83, Satya Gontcho A Gontcho84, Jonay I. González Hernández85, Eva K. Grebel86, Jan Niklas Grieb87, Nolan Grieves88, James E. Gunn89, Hong Guo90, Paul Harding91, Sten Hasselquist92, Suzanne L. Hawley93, Michael Hayden94, Fred R. Hearty95, Shirley Ho96, David W. Hogg97, Kelly Holley-Bockelmann98, Jon A. Holtzman99, Klaus Honscheid100, Joseph Huehnerhoff101, Linhua Jiang102, Jennifer A. Johnson103, Karen Kinemuchi104, David Kirkby105, Francisco Kitaura106, Mark A. Klaene107, Jean-Paul Kneib108, Xavier P. Koenig109, Charles R. Lam110, Ting-Wen Lan111, Dustin Lang112, Pierre Laurent113, Jean-Marc Le Goff114, Alexie Leauthaud115, Khee-Gan Lee116, Young Sun Lee117, Timothy C. Licquia118, Jian Liu119, Daniel C. Long120, Martín López-Corredoira121, Diego Lorenzo-Oliveira122, Sara Lucatello123, Britt Lundgren124, Robert H. Lupton125, Claude E. Mack III126, Suvrath Mahadevan127, Marcio A. G. Maia128, Steven R. Majewski129, Elena Malanushenko130, Viktor Malanushenko131, A. Manchado132, Marc Manera133, Qingqing Mao134, Claudia Maraston135, Robert C. Marchwinski136, Daniel Margala137, Sarah L. Martell138, Marie Martig139, Karen L. Masters140, Cameron K. McBride141, Peregrine M. McGehee142, Ian D. McGreer143, Richard G. McMahon144, Brice Ménard145, Marie-Luise Menzel146, Andrea Merloni147, Szabolcs Mészáros148, Adam A. Miller149, Jordi Miralda-Escudé150, Hironao Miyatake151, Antonio D. Montero-Dorta152, Surhud More153, Xan Morice-Atkinson154, Heather L. Morrison155, Demitri Muna156, Adam D. Myers157, Jeffrey A. Newman158, Mark Neyrinck159, Duy Cuong Nguyen160, Robert C. Nichol161, David L. Nidever162, Pasquier Noterdaeme163, Sebastián E. Nuza164, Julia E. O'Connell165, Robert W. O'Connell166, Ross O'Connell167, Ricardo L. C. Ogando168, Matthew D. Olmstead169, Audrey E. Oravetz170, Daniel J. Oravetz171, Keisuke Osumi172, Russell Owen173, Deborah L. Padgett174, Nikhil Padmanabhan175, Martin Paegert176, Nathalie Palanque-Delabrouille177, Kaike Pan178, John K. Parejko179, Changbom Park180, Isabelle Pâris181, Petchara Pattarakijwanich182, M. Pellejero-Ibanez183, Joshua Pepper184, Will J. Percival185, Ismael Pérez-Fournon186, Ignasi Pérez-Ràfols187, Patrick Petitjean188, Matthew M. Pieri189, Marc H. Pinsonneault190, Gustavo F. Porto de Mello191, Francisco Prada192, Abhishek Prakash193, Adrian M. Price-Whelan194, M. Jordan Raddick195, Mubdi Rahman196, Beth A. Reid197, James Rich198, Hans-Walter Rix199, Annie C. Robin200, Constance M. Rockosi201, Thaíse S. Rodrigues202, Sergio Rodríguez-Rottes203, Natalie A. Roe204, Ashley J. Ross205, Nicholas P. Ross206, Graziano Rossi207, John J. Ruan208, J. A. Rubiño-Martín209, Eli S. Rykoff210, Salvador Salazar-Albornoz211, Mara Salvato212, Lado Samushia213, Ariel G. Sánchez214, Basílio Santiago215, Conor Sayres216, Ricardo P. Schiavon217, David J. Schlegel218, Sarah J. Schmidt219, Donald P. Schneider220, Mathias Schultheis221, Axel D. Schwope222, C. G. Scóccola223, Kris Sellgren224, Hee-Jong Seo225, Neville Shane226, Yue Shen227, Matthew Shetrone228, Yiping Shu229, Thirupathi Sivarani230, M. F. Skrutskie231, Anže Slosar232, Verne V. Smith233, Flávia Sobreira234, Keivan G. Stassun235, Matthias Steinmetz236, Michael A. Strauss237, Alina Streblyanska238, Molly E. C. Swanson239, Jonathan C. Tan240, Jamie Tayar241, Ryan C. Terrien242, Aniruddha R. Thakar243, Daniel Thomas244, Benjamin A. Thompson245, Jeremy L. Tinker246, Rita Tojeiro247, Nicholas W. Troup248, Mariana Vargas-Magaña249, Jose A. Vazquez250, Licia Verde251, Matteo Viel252, Nicole P. Vogt253, David A. Wake254, Ji Wang255, Benjamin A. Weaver256, David H. Weinberg257, Benjamin J. Weiner258, Martin White259, John C. Wilson260, John P. Wisniewski261, W. M. Wood-Vasey262, Christophe Yèche263, Donald G. York264, Nadia L. Zakamska265, O. Zamora266, Gail Zasowski267, Idit Zehavi268, Gong-Bo Zhao269, Zheng Zheng270, Xu Zhou271, Zhimin Zhou272, Guangtun Zhu273, Hu Zou274
Affiliations: 1Bruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA, 2Instituto de Física Teórica, 3Instituto de Astrofísica de Canarias, 4Leibniz-Institut für Astrophysik Potsdam, 5Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA, 6Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA, 7CEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, France, 8APC, University of Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris, France, 9Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA, 10APC, University of Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris, France, 11Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325, USA, 12Department of Physics and JINA Center for the Evolution of the Elements, University of Notre Dame, Notre Dame, IN 46556 USA, 13Department of Astronomy and Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA, 14Department of Physics and Astronomy, Vanderbilt University, VU Station 1807, Nashville, TN 37235, USA, 15Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA, 16Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA, 17Department of Physics and Astronomy, Vanderbilt University, VU Station 1807, Nashville, TN 37235, USA, 18Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349, USA, 19University of Pennsylvania, Department of Physics and Astronomy, 219 S. 33rd St., Philadelphia, PA 19104, USA, 20Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003, USA, 21Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA, 22Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA, 23Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA, 24Institute for Advanced Study, Einstein Drive, Princeton, NJ 08540, USA, 25Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349, USA, 26Department of Astronomy and Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA, 27Leibniz-Institut für Astrophysik Potsdam, 28Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349, USA, 29George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A. and M. University, Department of Physics and Astronomy, 4242 TAMU, College Station, TX 77843, USA, 30Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA, 31Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth, PO1 3FX, UK, 32CEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, France, 33Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil, 34Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721, USA, 35Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth, PO1 3FX, UK, 36Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil, 37Instituto de Astrofísica de Canarias, 38Department of Statistics, Bruce and Astrid McWilliams Center for Cosmology, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA, 39Leibniz-Institut für Astrophysik Potsdam, 40Department of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USA, 41Instituto de Física Teórica, 42Max-Planck-Institut für Extraterrestrische Physik, Postfach 1312, Giessenbachstr. D-85741 Garching, Germany, 43Instituto de Física Teórica, 44Lowell Observatory, 1400 W. Mars Hill Road, Flagstaff AZ 86001, 45Bruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA, 46Institut de Ciències del Cosmos, Universitat de Barcelona/IEEC, Barcelona E-08028, Spain, 47Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil, 48Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil, 49Department of Astronomy, University of Florida, Bryant Space Science Center, Gainesville, FL 32611-2055, USA, 50Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA, 51Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA, 52Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY 41099, USA, 53Laboratoire d'Astrophysique, École Polytechnique Fédérale de Lausanne, 54Department of Astronomy and Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA, 55Universidade Federal do Rio de Janeiro, Observatório do Valongo, Ladeira do Pedro Antônio 43, 20080-090 Rio de Janeiro, Brazil, 56Max-Planck-Institut für Extraterrestrische Physik, Postfach 1312, Giessenbachstr. 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D-85741 Garching, Germany, 148ELTE Gothard Astrophysical Observatory, H-9704 Szombathely, Szent Imre herceg st. 112, Hungary, 149Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA, 150Institució Catalana de Recerca i Estudis Avançats, Barcelona E-08010, Spain, 151Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA, 152Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA, 153Kavli Institute for the Physics and Mathematics of the Universe, 154Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth, PO1 3FX, UK, 155Department of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USA, 156Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA, 157Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA, 158PITT PACC, Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260, USA, 159Center for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA, 160Dunlap Institute for Astronomy and Astrophysics, University of Toronto, Toronto, ON, M5S 3H4, Canada, 161Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth, PO1 3FX, UK, 162Dept. of Astronomy, University of Michigan, Ann Arbor, MI, 48104, USA, 163Institut d'Astrophysique de Paris, UPMC-CNRS, UMR7095, 98 bis Boulevard Arago, F-75014, Paris, France, 164Leibniz-Institut für Astrophysik Potsdam, 165Department of Physics and Astronomy, Texas Christian University, 2800 South University Drive, Fort Worth, TX 76129, USA, 166Department of Astronomy, University of Virginia, P.O. 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The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Read More

2014Oct
Affiliations: 1Vanderbilt University, 2Lehigh University, 3Vanderbilt University, 4Vanderbilt University, 5Northern Kentucky University, 6MIT

We introduce a catalog of stellar properties for stars observed by the Kepler follow-on mission, K2. We base the catalog on a cross-match between the K2 Campaign target lists and the current working version of the NASA TESS target catalog. The resulting K2-TESS Stellar Properties Catalog includes value-added information from the TESS Target Catalog, including stellar colors, proper motions, effective temperatures, an estimated luminosity class (dwarf/subgiant versus giant) for each star based on reduced-proper-motion, and many other properties via cross-matching to other all-sky catalogs. Read More

Studies of Galactic chemical and dynamical evolution in the solar neighborhood depend on the availability of precise atmospheric parameters (Teff, [Fe/H] and log g) for solar-type stars. Many large-scale spectroscopic surveys operate at low to moderate spectral resolution for efficiency in observing large samples, which makes the stellar characterization difficult due to the high degree of blending of spectral features. While most surveys use spectral synthesis, in this work we employ an alternative method based on spectral indices to determine the atmospheric parameters of a sample of nearby FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving power (R~12,000). Read More

This online book contains the proceedings of a meeting held at Michigan State University to celebrate the career and contributions of Horace A Smith. The meeting focused on the areas of astronomy which Horace worked on over the years and featured talks on RR Lyrae, Cepheids, and other variable stars. In addition to the direct links to the arXiv articles, I have included a link to download the entire book for free. Read More

The SDSS has been a gold mine for understanding properties of the Milky Way. Below, in the watershed, there remain small nuggets to be found flowing from the deepest recesses of the mine. The SDSS-DR9 included the release of the flux- and wavelength-calibrated, individual spectra which were subsequently combined to form the composite spectra found in previous SDSS data releases. Read More

Although more than eight decades have passed since P. Th. Oosterhoff drew attention to differences in the properties of RR Lyrae variables in globular clusters, the origin and significance of the Oosterhoff groups remain unclear. Read More

2013Jul
Authors: Christopher P. Ahn, Rachael Alexandroff, Carlos Allende Prieto, Friedrich Anders, Scott F. Anderson, Timothy Anderton, Brett H. Andrews, Éric Aubourg, Stephen Bailey, Fabienne A. Bastien, Julian E. Bautista, Timothy C. Beers, Alessandra Beifiori, Chad F. Bender, Andreas A. Berlind, Florian Beutler, Vaishali Bhardwaj, Jonathan C. Bird, Dmitry Bizyaev, Cullen H. Blake, Michael R. Blanton, Michael Blomqvist, John J. Bochanski, Adam S. Bolton, Arnaud Borde, Jo Bovy, Alaina Shelden Bradley, W. N. Brandt, Dorothée Brauer, J. Brinkmann, Joel R. Brownstein, Nicolás G. Busca, William Carithers, Joleen K. Carlberg, Aurelio R. Carnero, Michael A. Carr, Cristina Chiappini, S. Drew Chojnowski, Chia-Hsun Chuang, Johan Comparat, Justin R. Crepp, Stefano Cristiani, Rupert A. C. Croft, Antonio J. Cuesta, Katia Cunha, Luiz N. da Costa, Kyle S. Dawson, Nathan De Lee, Janice D. R. Dean, Timothée Delubac, Rohit Deshpande, Saurav Dhital, Anne Ealet, Garrett L. Ebelke, Edward M. Edmondson, Daniel J. Eisenstein, Courtney R. Epstein, Stephanie Escoffier, Massimiliano Esposito, Michael L. Evans, D. Fabbian, Xiaohui Fan, Ginevra Favole, Bruno Femenía Castellá, Emma Fernández Alvar, Diane Feuillet, Nurten Filiz Ak, Hayley Finley, Scott W. Fleming, Andreu Font-Ribera, Peter M. Frinchaboy, J. G. Galbraith-Frew, D. A. García-Hernández, Ana E. García Pérez, Jian Ge, R. Génova-Santos, Bruce A. Gillespie, Léo Girardi, Jonay I. González Hernández, J. Richard Gott III, James E. Gunn, Hong Guo, Samuel Halverson, Paul Harding, David W. Harris, Sten Hasselquist, Suzanne L. Hawley, Michael Hayden, Frederick R. Hearty, Artemio Herrero Davó, Shirley Ho, David W. Hogg, Jon A. Holtzman, Klaus Honscheid, Joseph Huehnerhoff, Inese I. Ivans, Kelly M. Jackson, Peng Jiang, Jennifer A. Johnson, David Kirkby, K. Kinemuchi, Mark A. Klaene, Jean-Paul Kneib, Lars Koesterke, Ting-Wen Lan, Dustin Lang, Jean-Marc Le Goff, Khee-Gan Lee, Young Sun Lee, Daniel C. Long, Craig P. Loomis, Sara Lucatello, Robert H. Lupton, Bo Ma, Claude E. Mack III, Suvrath Mahadevan, Marcio A. G. Maia, Steven R. Majewski, Elena Malanushenko, Viktor Malanushenko, A. Manchado, Marc Manera, Claudia Maraston, Daniel Margala, Sarah L. Martell, Karen L. Masters, Cameron K. McBride, Ian D. McGreer, Richard G. McMahon, Brice Ménard, Sz. Mészáros, Jordi Miralda-Escudé, Hironao Miyatake, Antonio D. Montero-Dorta, Francesco Montesano, Surhud More, Heather L. Morrison, Demitri Muna, Jeffrey A. Munn, Adam D. Myers, Duy Cuong Nguyen, Robert C. Nichol, David L. Nidever, Pasquier Noterdaeme, Sebastián E. Nuza, Julia E. O'Connell, Robert W. O'Connell, Ross O'Connell, Matthew D. Olmstead, Daniel J. Oravetz, Russell Owen, Nikhil Padmanabhan, Nathalie Palanque-Delabrouille, Kaike Pan, John K. Parejko, Isabelle Pâris, Joshua Pepper, Will J. Percival, Ignasi Pérez-Ràfols, Hélio Dotto Perottoni, Patrick Petitjean, Matthew M. Pieri, M. H. Pinsonneault, Francisco Prada, Adrian M. Price-Whelan, M. Jordan Raddick, Mubdi Rahman, Rafael Rebolo, Beth A. Reid, Jonathan C. Richards, Rogério Riffel, Annie C. Robin, H. J. Rocha-Pinto, Constance M. Rockosi, Natalie A. Roe, Ashley J. Ross, Nicholas P. Ross, Graziano Rossi, Arpita Roy, J. A. Rubiño-Martin, Cristiano G. Sabiu, Ariel G. Sánchez, Basílio Santiago, Conor Sayres, Ricardo P. Schiavon, David J. Schlegel, Katharine J. Schlesinger, Sarah J. Schmidt, Donald P. Schneider, Mathias Schultheis, Kris Sellgren, Hee-Jong Seo, Yue Shen, Matthew Shetrone, Yiping Shu, Audrey E. Simmons, M. F. Skrutskie, Anže Slosar, Verne V. Smith, Stephanie A. Snedden, Jennifer S. Sobeck, Flavia Sobreira, Keivan G. Stassun, Matthias Steinmetz, Michael A. Strauss, Alina Streblyanska, Nao Suzuki, Molly E. C. Swanson, Ryan C. Terrien, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Rita Tojeiro, Nicholas W. Troup, Jan Vandenberg, Mariana Vargas Magaña, Matteo Viel, Nicole P. Vogt, David A. Wake, Benjamin A. Weaver, David H. Weinberg, Benjamin J. Weiner, Martin White, Simon D. M. White, John C. Wilson, John P. Wisniewski, W. M. Wood-Vasey, Christophe Yèche, Donald G. York, O. Zamora, Gail Zasowski, Idit Zehavi, Zheng Zheng, Guangtun Zhu

The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the tenth public data release (DR10) from its current incarnation, SDSS-III. This data release includes the first spectroscopic data from the Apache Point Observatory Galaxy Evolution Experiment (APOGEE), along with spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS) taken through 2012 July. Read More

2013Jul
Affiliations: 1Michigan State University, 2Michigan State University, 3Michigan State University, 4Pontificia Universidad Católica de Chile, 5Korea Astronomy and Space Science Institute, 6Camosun College, 7Cerro Tololo Inter-American Observatory, 8Cerro Tololo Inter-American Observatory, 9University of Wisconsin Oskosh, 10Michigan State University, 11Universidad de Valparaíso

This is the third in a series of papers studying the variable stars in old globular clusters in the Large Magellanic Cloud. The primary goal of this series is to look at how the characteristics and behavior of RR Lyrae stars in Oosterhoff-intermediate systems compare to those of their counterparts in Oosterhoff-I/II systems. In this paper we present the results of our new time-series BVI photometric study of the globular cluster Reticulum. Read More

Filtergraph is a web application being developed and maintained by the Vanderbilt Initiative in Data-intensive Astrophysics (VIDA) to flexibly and rapidly visualize a large variety of astronomy datasets of various formats and sizes. The user loads a flat-file dataset into Filtergraph which automatically generates an interactive data portal that can be easily shared with others. From this portal, the user can immediately generate scatter plots of up to 5 dimensions as well as histograms and tables based on the dataset. Read More

We report the discovery of a highly eccentric, double-lined spectroscopic binary star system (TYC 3010-1494-1), comprising two solar-type stars that we had initially identified as a single star with a brown dwarf companion. At the moderate resolving power of the MARVELS spectrograph and the spectrographs used for subsequent radial-velocity (RV) measurements (R ~ <30,000), this particular stellar binary mimics a single-lined binary with an RV signal that would be induced by a brown dwarf companion (Msin(i)~50 M_Jup) to a solar-type primary. At least three properties of this system allow it to masquerade as a single star with a very low-mass companion: its large eccentricity (e~0. Read More

Filtergraph is a web application being developed by the Vanderbilt Initiative in Data-intensive Astrophysics (VIDA) to flexibly handle a large variety of astronomy datasets. While current datasets at Vanderbilt are being used to search for eclipsing binaries and extrasolar planets, this system can be easily reconfigured for a wide variety of data sources. The user loads a flat-file dataset into Filtergraph which instantly generates an interactive data portal that can be easily shared with others. Read More

This is the second in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to study how RR Lyrae stars in Oosterhoff-intermediate systems compare to their counterparts in Oosterhoff I/II systems. In this paper, we present the results of our new time-series BV photometeric study of the globular cluster NGC 1786. Read More

2012Jul
Authors: SDSS-III Collaboration, :, Christopher P. Ahn, Rachael Alexandroff, Carlos Allende Prieto, Scott F. Anderson, Timothy Anderton, Brett H. Andrews, Éric Aubourg Stephen Bailey, Rory Barnes, Julian Bautista, Timothy C. Beers, Alessandra Beifiori, Andreas A. Berlind, Vaishali Bhardwaj, Dmitry Bizyaev, Cullen H. Blake, Michael R. Blanton, Michael Blomqvist, John J. Bochanski, Adam S. Bolton, Arnaud Borde, Jo Bovy, W. N. Brandt, J. Brinkmann, Peter J. Brown, Joel R. Brownstein, Kevin Bundy, N. G. Busca, William Carithers, Aurelio R. Carnero, Michael A. Carr, Dana I. Casetti-Dinescu, Yanmei Chen, Cristina Chiappini, Johan Comparat, Natalia Connolly, Justin R. Crepp, Stefano Cristiani, Rupert A. C. Croft, Antonio J. Cuesta, Luiz N. da Costa, James R. A. Davenport, Kyle S. Dawson, Roland de Putter, Nathan De Lee, Timothée Delubac, Saurav Dhital, Anne Ealet, Garrett L. Ebelke, Edward M. Edmondson, Daniel J. Eisenstein, S. Escoffier, Massimiliano Esposito, Michael L. Evans, Xiaohui Fan, Bruno Femení a Castellá, Emma Fernández Alvar, Leticia D. Ferreira, N. Filiz Ak, Hayley Finley, Scott W. Fleming, Andreu Font-Ribera, Peter M. Frinchaboy, D. A. García-Hernández, A. E. García Pérez, Jian Ge, R. Génova-Santos, Bruce A. Gillespie, Léo Girardi, Jonay I. González Hernández, Eva K. Grebel, James E. Gunn, Daryl Haggard, Jean-Christophe Hamilton, David W. Harris, Suzanne L. Hawley, Frederick R. Hearty, Shirley Ho, David W. Hogg, Jon A. Holtzman, Klaus Honscheid, J. Huehnerhoff, Inese I. Ivans, Zeljko Ivezić, Heather R. Jacobson, Linhua Jiang, Jonas Johansson, Jennifer A. Johnson, Guinevere Kauffmann, David Kirkby, Jessica A. Kirkpatrick, Mark A. Klaene, Gillian R. Knapp, Jean-Paul Kneib, Jean-Marc Le Goff, Alexie Leauthaud, Khee-Gan Lee, Young Sun Lee, Daniel C. Long, Craig P. Loomis, Sara Lucatello, Britt Lundgren, Robert H. Lupton, Bo Ma, Zhibo Ma, Nicholas MacDonald, Suvrath Mahadevan, Marcio A. G. Maia, Steven R. Majewski, Martin Makler, Elena Malanushenko, Viktor Malanushenko, A. Manchado, Rachel Mandelbaum, Marc Manera, Claudia Maraston, Daniel Margala, Sarah L. Martell, Cameron K. McBride, Ian D. McGreer, Richard G. McMahon, Brice Ménard, Sz. Meszaros, Jordi Miralda-Escudé, Antonio D. Montero-Dorta, Francesco Montesano, Heather L. Morrison, Demitri Muna, Jeffrey A. Munn, Hitoshi Murayama, Adam D. Myers, A. F. Neto, Duy Cuong Nguyen, Robert C. Nichol, David L. Nidever, Pasquier Noterdaeme, Ricardo L. C. Ogando, Matthew D. Olmstead, Daniel J. Oravetz, Russell Owen, Nikhil Padmanabhan, Nathalie Palanque-Delabrouille, Kaike Pan, John K. Parejko, Prachi Parihar, Isabelle Pâris, Petchara Pattarakijwanich, Joshua Pepper, Will J. Percival, Ismael Pérez-Fournon, Ignasi Pérez-Ráfols, Patrick Petitjean, Janine Pforr, Matthew M. Pieri, Marc H. Pinsonneault, G. F. Porto de Mello, Francisco Prada, Adrian M. Price-Whelan, M. Jordan Raddick, Rafael Rebolo, James Rich, Gordon T. Richards, Annie C. Robin, Helio J. Rocha-Pinto, Constance M. Rockosi, Natalie A. Roe, Ashley J. Ross, Nicholas P. Ross, J. A. Rubiño-Martin, Lado Samushia, J. Sanchez Almeida, Ariel G. Sánchez, Basílio Santiago, Conor Sayres, David J. Schlegel, Katharine J. Schlesinger, Sarah J. Schmidt, Donald P. Schneider, Axel D. Schwope, C. G. Scóccola, Uros Seljak, Erin Sheldon, Yue Shen, Yiping Shu, Jennifer Simmerer, Audrey E. Simmons, Ramin A. Skibba, A. Slosar, Flavia Sobreira, Jennifer S. Sobeck, Keivan G. Stassun, Oliver Steele, Matthias Steinmetz, Michael A. Strauss, Molly E. C. Swanson, Tomer Tal, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Rita Tojeiro, Christy A. Tremonti, M. Vargas Magaña, Licia Verde, Matteo Viel, Shailendra K. Vikas, Nicole P. Vogt, David A. Wake, Ji Wang, Benjamin A. Weaver, David H. Weinberg, Benjamin J. Weiner, Andrew A. West, Martin White, John C. Wilson, John P. Wisniewski, W. M. Wood-Vasey, Brian Yanny, Christophe Yèche, Donald G. York, O. Zamora, Gail Zasowski, Idit Zehavi, Gong-Bo Zhao, Zheng Zheng, Guangtun Zhu, Joel C. Zinn

The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS). This ninth data release (DR9) of the SDSS project includes 535,995 new galaxy spectra (median z=0.52), 102,100 new quasar spectra (median z=2. Read More

We report the discovery via radial velocity of a short-period (P = 2.430420 \pm 0.000006 days) companion to the F-type main sequence star TYC 2930-00872-1. Read More

This is the first in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to better understand how the RR Lyrae stars in Oosterhoff-intermediate systems compare to those in Oosterhoff I/II systems. In this paper we present the results of our new time-series BV photometric study of NGC 1466. Read More

The dispersed fixed-delay Intereferometer (DFDI) method is attractive for its low cost, compact size, and multiobject capability in precision radial-velocity (RV) measurements. The phase shift of fringes of stellar absorption lines is measured and then converted to an RV shift via an important parameter, phase-to-velocity scale (PV scale), determined by the group delay (GD) of a fixed-delay interferometer. Two methods of GD measurement using a DFDI Doppler instrument are presented in this article: (1) GD measurement using white-light combs gen- erated by the fixed-delay interferometer and (2) GD calibration using an RV reference star. Read More

Exoplanet transit and Doppler surveys discover many binary stars during their operation that can be used to conduct a variety of ancillary science. Specifically, eclipsing binary stars can be used to study the stellar mass-radius relationship and to test predictions of theoretical stellar evolution models. By cross-referencing 24 binary stars found in the MARVELS Pilot Project with SuperWASP photometry, we find two new eclipsing binaries, TYC 0272-00458-1 and TYC 1422-01328-1, which we use as case studies to develop a general approach to eclipsing binaries in survey data. Read More

2011Jan
Authors: Daniel J. Eisenstein, David H. Weinberg, Eric Agol, Hiroaki Aihara, Carlos Allende Prieto, Scott F. Anderson, James A. Arns, Eric Aubourg, Stephen Bailey, Eduardo Balbinot, Robert Barkhouser, Timothy C. Beers, Andreas A. Berlind, Steven J. Bickerton, Dmitry Bizyaev, Michael R. Blanton, John J. Bochanski, Adam S. Bolton, Casey T. Bosman, Jo Bovy, Howard J. Brewington, W. N. Brandt, Ben Breslauer, J. Brinkmann, Peter J. Brown, Joel R. Brownstein, Dan Burger, Nicolas G. Busca, Heather Campbell, Phillip A. Cargile, William C. Carithers, Joleen K. Carlberg, Michael A. Carr, Yanmei Chen, Cristina Chiappini, Johan Comparat, Natalia Connolly, Marina Cortes, Rupert A. C. Croft, Luiz N. da Costa, Katia Cunha, James R. A. Davenport, Kyle Dawson, Nathan De Lee, Gustavo F. Porto de Mello, Fernando de Simoni, Janice Dean, Saurav Dhital, Anne Ealet, Garrett L. Ebelke, Edward M. Edmondson, Jacob M. Eiting, Stephanie Escoffier, Massimiliano Esposito, Michael L. Evans, Xiaohui Fan, Bruno Femenia Castella, Leticia Dutra Ferreira, Greg Fitzgerald, Scott W. Fleming, Andreu Font-Ribera, Eric B. Ford, Peter M. Frinchaboy, Ana Elia Garcia Perez, B. Scott Gaudi, Jian Ge, Luan Ghezzi, Bruce A. Gillespie, G. Gilmore, Leo Girardi, J. Richard Gott, Andrew Gould, Eva K. Grebel, James E. Gunn, Jean-Christophe Hamilton, Paul Harding, David W. Harris, Suzanne L. Hawley, Frederick R. Hearty, Jonay I. Gonzalez Hernandez, Shirley Ho, David W. Hogg, Jon A. Holtzman, Klaus Honscheid, Naohisa Inada, Inese I. Ivans, Linhua Jiang, Peng Jiang, Jennifer A. Johnson, Cathy Jordan, Wendell P. Jordan, Guinevere Kauffmann, Eyal Kazin, David Kirkby, Mark A. Klaene, Jean-Paul Kneib, G. R. Knapp, C. S. Kochanek, Lars Koesterke, Juna A. Kollmeier, Richard G. Kron, Dustin Lang, James E. Lawler, Jean-Marc Le Goff, Brian L. Lee, Young Sun Lee, Jarron M. Leisenring, Yen-Ting Lin, Jian Liu, Daniel C. Long, Craig P. Loomis, Sara Lucatello, Britt Lundgren, Robert H. Lupton, Bo Ma, Zhibo Ma, Nicholas MacDonald, Claude Mack, Suvrath Mahadevan, Marcio A. G. Maia, Elena Malanushenko, Viktor Malanushenko, Steven R. Majewski, Martin Makler, Rachel Mandelbaum, Claudia Maraston, Daniel Margala, Paul Maseman, Karen L. Masters, Cameron K. McBride, Patrick McDonald, Ian D. McGreer, Richard G. McMahon, Olga Mena Requejo, Brice Menard, Jordi Miralda-Escude, Heather L. Morrison, Fergal Mullally, Demitri Muna, Hitoshi Murayama, Adam D. Myers, Tracy Naugle, Angelo Fausti Neto, Duy Cuong Nguyen, Robert C. Nichol, David L. Nidever, Robert W. O'Connell, Ricardo L. C. Ogando, Matthew D. Olmstead, Daniel J. Oravetz, Nikhil Padmanabhan, Martin Paegert, Nathalie Palanque-Delabrouille, Kaike Pan, Parul Pandey, John K. Parejko, Isabelle Paris, Paulo Pellegrini, Joshua Pepper, Will J. Percival, Patrick Petitjean, Robert Pfaffenberger, Janine Pforr, Stefanie Phleps, Christophe Pichon, Matthew M. Pieri, Francisco Prada, Adrian M. Price-Whelan, M. Jordan Raddick, Beatriz H. F. Ramos, Celine Ryle, I. Neill Reid, James Rich, Gordon T. Richards, George H. Rieke, Marcia J. Rieke, Hans-Walter Rix, Annie C. Robin, Helio J. Rocha-Pinto, Constance M. Rockosi, Natalie A. Roe, Emmanuel Rollinde, Ashley J. Ross, Nicholas P. Ross, Bruno Rossetto, Ariel G. Sanchez, Basilio Santiago, Conor Sayres, Ricardo Schiavon, David J. Schlegel, Katharine J. Schlesinger, Sarah J. Schmidt, Donald P. Schneider, Kris Sellgren, Alaina Shelden, Erin Sheldon, Matthew Shetrone, Yiping Shu, John D. Silverman, Jennifer Simmerer, Audrey E. Simmons, Thirupathi Sivarani, M. F. Skrutskie, Anze Slosar, Stephen Smee, Verne V. Smith, Stephanie A. Snedden, Keivan G. Stassun, Oliver Steele, Matthias Steinmetz, Mark H. Stockett, Todd Stollberg, Michael A. Strauss, Masayuki Tanaka, Aniruddha R. Thakar, Daniel Thomas, Jeremy L. Tinker, Benjamin M. Tofflemire, Rita Tojeiro, Christy A. Tremonti, Mariana Vargas Magana, Licia Verde, Nicole P. Vogt, David A. Wake, Xiaoke Wan, Ji Wang, Benjamin A. Weaver, Martin White, Simon D. M. White, John C. Wilson, John P. Wisniewski, W. Michael Wood-Vasey, Brian Yanny, Naoki Yasuda, Christophe Yeche, Donald G. York, Erick Young, Gail Zasowski, Idit Zehavi, Bo Zhao

Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and the population of giant planets around other stars. In keeping with SDSS tradition, SDSS-III will provide regular public releases of all its data, beginning with SDSS DR8 (which occurred in Jan 2011). This paper presents an overview of the four SDSS-III surveys. Read More

We present a new short-period brown dwarf candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the third phase of the Sloan Digital Sky Survey (SDSS-III), and we designate the brown dwarf as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2. Read More

Light curves in the B, V, and I_c passbands have been obtained for the type II Cepheids V154 in M3 and V42 and V84 in M5. Alternating cycle behavior, similar to that seen among RV Tauri variables, is confirmed for V84. Old and new observations, spanning more than a century, show that V154 has increased in period while V42 has decreased in period. Read More

We present an improved analysis of halo substructure traced by RR Lyrae stars in the SDSS stripe 82 region. With the addition of SDSS-II data, a revised selection method based on new ugriz light curve templates results in a sample of 483 RR Lyrae stars that is essentially free of contamination. The main result from our first study persists: the spatial distribution of halo stars at galactocentric distances 5--100 kpc is highly inhomogeneous. Read More

2009Jun
Affiliations: 1Observatoire de Geneve, 2INAF, Osservatorio Astronomico Bologna, 3Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, 4INAF, Osservatorio Astronomico di Padova, 5INAF, Osservatorio Astronomico di Brera, 6INAF, Osservatorio Astronomico di Padova, 7INAF, Osservatorio Astronomico Bologna, 8Physics Department, Harvard University, 9Department of Astronomy, University of Florida, 10Department of Physics and Astronomy, Michigan State University, 11University of Wisconsin Oshkosh, Physics and Astronomy Department

We present a new study of the variable star population in globular cluster 5 of the Fornax dwarf spheroidal galaxy, based on B and V time series photometry obtained with the MagIC camera of the 6.5 m Magellan Clay telescope and complementary HST archive data. Light curves and accurate periodicities were obtained for 30 RR Lyrae stars and 1 SX Phoenicis variable. Read More

We describe a new RR Lyrae identification technique based on out-of-phase single-epoch photometric and spectroscopic observations contained in SDSS Data Release 6 (DR-6). This technique detects variability by exploiting the large disparity between the g-r color and the strength of the hydrogen Balmer lines when the two observations are made at random phases. Comparison with a large sample of known variables in the SDSS equatorial stripe (Stripe 82) shows that the discovery efficiency for our technique is ~85%. Read More

We report broadband UBV and/or BVRI CCD photometry for a total of 1857 stars in the thick-disk and halo populations of the Galaxy. The majority of our targets were selected as candidate field horizontal-branch or other A-type stars (FHB/A, N = 576), or candidate low-metallicity stars (N = 1221), from the HK and Hamburg/ESO objective-prism surveys. Similar data for a small number of additional stars from other samples are also reported. Read More